CVE-2021-35267 (GCVE-0-2021-35267)
Vulnerability from cvelistv5 – Published: 2021-09-07 00:00 – Updated: 2026-07-09 00:13
VLAI
EPSS
VEX
Summary
NTFS-3G versions < 2021.8.22, a stack buffer overflow can occur when correcting differences in the MFT and MFTMirror allowing for code execution or escalation of privileges when setuid-root.
Severity
7.8 (High)
CWE
- n/a
Assigner
References
9 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/08/30/1 | mailing-list |
| https://github.com/tuxera/ntfs-3g/security/adviso… | |
| https://www.debian.org/security/2021/dsa-4971 | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-list |
| https://security.gentoo.org/glsa/202301-01 | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_transferred |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_transferred |
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"name": "[oss-security] 20210830 NTFS3G-SA-2021-0001: Multiple buffer overflows in all versions of NTFS-3G",
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{
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"date": "2026-09-14",
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"microsoft_vex": {
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"cve": "CVE-2021-35267",
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"source": "Microsoft CSAF VEX",
"status": "final",
"title": "NTFS-3G versions \u003c 2021.8.22 a stack buffer overflow can occur when correcting differences in the MFT and MFTMirror allowing for code execution or escalation of privileges when setuid-root.",
"url": "https://msrc.microsoft.com/csaf/vex/2021/msrc_cve-2021-35267.json",
"version": "1"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-35267\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2021-09-07T15:15:07.757\",\"lastModified\":\"2026-07-09T01:16:55.913\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"NTFS-3G versions \u003c 2021.8.22, a stack buffer overflow can occur when correcting differences in the MFT and MFTMirror allowing for code execution or escalation of privileges when setuid-root.\"},{\"lang\":\"es\",\"value\":\"NTFS-3G versiones anteriores a 2021.8.22, puede ocurrir un desbordamiento del b\u00fafer de la pila cuando son corregidas las diferencias en el MFT y el MFTMirror, permitiendo una ejecuci\u00f3n de c\u00f3digo o una escalada de privilegios cuando es 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"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-07-05T01:24:29+00:00",
"cve": "CVE-2021-35267",
"id": "CVE-2021-35267",
"initial_release_date": "2021-08-30T00:00:00+00:00",
"product_status:fixed": "2813",
"product_status:known_affected": "8",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "ntfs-3g: Stack buffer overflow triggered when correcting differences between MFT and MFTMirror sections",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-35267.json",
"version": "3"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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